From Churchill to Mahathir: political second acts

With his shock victory in Malaysia's election, Mahathir Mohamad has pulled off a political second act that few expected, joining the select ranks of politicians who have revived their careers.

The 92-year-old former strongman ruled Malaysia with an iron fist for more than two decades before stepping down, but returned to political life to challenge his own former party, snatching a surprise win in yesterday's poll.

Here are some other political figures who have had second, and even third acts during their careers: Winston Churchill
He has said he was encouraged to seek a path back to power by reading a biography of Churchill entitled: "Never Despair."